如何在UIWebView上关闭键盘？

Question

I am loading an HTML page that has a form. I would like to be able to dismiss the keyboard when the user clicks on GO or if he clicks on the SUBMIT button on the HTML page.

If the user decides he doesn't want to fill out the form, I also need a way to dismiss the keyboard.

Not sure how to do this.

Answer 1

更简洁的方法，无需知道选择了哪个元素如下：

[webView stringByEvaluatingJavaScriptFromString:@"document.activeElement.blur()"];

Answer 2

javascript方法很聪明，但这更直接：

[webView endEditing:YES];

Answer 3

您可以使用javascript将焦点从HTML文本字段中移开：

document.foo.bar.myinput.blur();

Answer 4

UIGestureRecogniser will help to dismiss the keyboard when user clicks on the WebView. Here is the piece of code i used.

let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTap(_:)))
        tap.delegate = self 
        webView.addGestureRecognizer(tap)

@objc func handleTap(_ sender: UITapGestureRecognizer) { webView?.endEditing(true) }

func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
  return true
}

Hope the helps.

Answer 5

I'm not so familiar with UIWebView, but normally you would dismiss your keyboard like so...

[textField resignFirstResponder];

By doing that, the keyboard would be dismissed...

To have the keyboard be dismissed when say the user clicks the return button, you would need to implement the delegate method.

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{   
    [textField resignFirstResponder];
    return YES;
}

Apple's documentation has a full list of methods for the UITextFieldDelegate.